What is a 1743 patrona bavariae coin worth?

All Maria Theresa dollar-sized coins (called "thalers" or "talers") should have the date 1780. If your coin is a different size, please post a new question with its size and denomination.

The Maria Theresa thaler coin has been struck by many countries for over 200 years. Original issues and early restrikes are almost impossible to tell apart, but restrikes have mostly been sold as bullion pieces and are worth about $17 at current silver prices.